Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs

Details Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs

2006-10-04

arxiv.org/abs/astro-ph/0610101v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, to appear in the ASP Conference Series for the 15th European White Dwarf Workshop

Scientific paper

A {\em Spitzer} IRAC survey of 17 nearby metal-rich white dwarfs, nominally DAZ stars, reveals excess emission from only 3 targets: G29-38, GD 362 and G167-8. Observations of GD 362 with all three {\em Spitzer} instruments reveals a warm ($\approx1000$ K) dust continuum, very strong silicate emission, and the likely presence of cooler ($\approx500$ K) dust. While there is a general similarity between the mid-infrared spectral energy distributions of G29-38 and GD 362, the IRAC fluxes of G167-8 are so far unique among white dwarfs. However, further observations of G167-8 are required before the measured excess can be definitely associated with the white dwarf.

Affiliated with

Also associated with

No associations

Rating

Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spitzer Observations of GD 362 and Other Metal-Rich White Dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-155286